added white noise with trigger and white noise auto loop

basics/White-noise-with-trigger/White-noise-with-trigger/White-noise-with-trigger.ino

@@ -0,0 +1,47 @@
+/*
+ * 
+ * Trigger Detect
+ * 
+ * 
+ * Detecting triggers is essential to interact with other modules, for example to generate short bursts of sounds
+ * Try the output of simple-lfo.ino with this patch and open the serial monitor to see what happens!
+ * 
+ * A3 = Trigger in
+ * 
+ */
+
+bool triggered; // logic: trigered, yes or no
+long randNumber; //variable to store random number
+int pwmPin = 11; //define output pin, Meergranen output pin is 11
+
+
+
+void setup() {
+  pinMode(pwmPin,OUTPUT);
+  Serial.begin(9600); // debugging (see if trigger is registered)
+}
+
+void loop() {
+  
+  int input3 = digitalRead(A3); // read analog pin 3
+  
+  //  trigger 
+  if(input3 && !triggered) { //if there is a reading on input3 and the bool condition triggered is not true do
+      Serial.println("I hear a trigger!");
+      // DO SOMETHING ON TRIGGER HERE
+        for(int i=0;i<2000;i++){ 
+        randNumber = random(10, 100); //generate random number between 10 and 100
+        digitalWrite(pwmPin, LOW); //set output pin to LOW (0v)
+        delayMicroseconds(randNumber);//wait for randomNumber (10-100 Mircroseconds (0.00001-0.0001 seconds))
+        digitalWrite(pwmPin, HIGH); //set output pin to HIGH (5v)
+        delayMicroseconds(randNumber); //wait for randomNumber (10-100 Mircroseconds (0.00001-0.0001 seconds))
+     
+      triggered = true;
+      }
+}      
+    else if(!input3 && triggered) { //if there is no reading on input3 and condition triggered is true (aka sound is playing), set triggered to false, aka stop playing 
+      // STOP WHEN NO TRIGGER IS PRESENT (or do something else ;)
+      triggered = false; 
+    }
+
+}

basics/snare-ext-trigger/snare-ext-trigger.ino

@@ -0,0 +1,49 @@
+/*
+ * 
+ * Snare - External trigger
+ * 
+ */
+long randNumber; //variable to store random number
+int pwmPin = 11; //define output pin, Meergranen output pin is 11
+bool triggered; // logic: trigered, yes or no
+
+void setup() {
+  // if analog input pin 5 is unconnected, random analog
+  // noise will cause the call to randomSeed() to generate
+  // different seed numbers each time the sketch runs.
+  // randomSeed() will then shuffle the random function.
+  randomSeed(analogRead(5));
+  Serial.begin(9600);
+  pinMode(pwmPin,OUTPUT); //set pwmPin to output mode (otherwise the built-in pulldown resistor sets it as input, aka you wont hear anything)
+}
+
+void loop() {
+
+  int input3 = digitalRead(A3); // read analog pin 3
+
+  if(input3 && !triggered) { //if there is a reading on input3 and the bool condition triggered is not true do
+
+
+  for(int i=0;i<25;i++){ 
+    randNumber = random(10, 100); //generate random number between 10 and 100
+    digitalWrite(pwmPin, LOW); //set output pin to LOW (0v)
+    delayMicroseconds(randNumber/10*(i/4)*(analogRead(A1)/10));//wait for randomNumber (10-100 Mircroseconds (0.00001-0.0001 seconds))
+    digitalWrite(pwmPin, HIGH); //set output pin to HIGH (5v)
+    delayMicroseconds(randNumber/10*(i/4)*(analogRead(A1)/10)); //wait for randomNumber (10-100 Mircroseconds (0.00001-0.0001 seconds))
+  }
+   for(int i=0;i<200;i++){ 
+    randNumber = random(10, 100); //generate random number between 10 and 100
+    digitalWrite(pwmPin, LOW); //set output pin to LOW (0v)
+    delayMicroseconds(randNumber);//wait for randomNumber (10-100 Mircroseconds (0.00001-0.0001 seconds))
+    digitalWrite(pwmPin, HIGH); //set output pin to HIGH (5v)
+    delayMicroseconds(randNumber); //wait for randomNumber (10-100 Mircroseconds (0.00001-0.0001 seconds))
+  }
+
+   triggered = true;
+    }
+    else if(!input3 && triggered) { //if there is no reading on input3 and condition triggered is true (aka sound is playing), set triggered to false, aka stop playing 
+      // STOP WHEN NO TRIGGER IS PRESENT (or do something else ;)
+      triggered = false;
+    }
+
+}

basics/trigger-detect/trigger-detect.ino

@@ -13,12 +13,26 @@
 
 bool triggered; // logic: trigered, yes or no
 
+long randNumber; //variable to store random number
+int pwmPin = 11; //define output pin, Meergranen output pin is 11
 
 void setup() {
-  Serial.begin(9600); // debugging (see if trigger is registered)
+  // if analog input pin 5 is unconnected, random analog
+  // noise will cause the call to randomSeed() to generate
+  // different seed numbers each time the sketch runs.
+  // randomSeed() will then shuffle the random function.
+  randomSeed(analogRead(5));
+  
+  pinMode(pwmPin,OUTPUT); //set pwmPin to output mode (otherwise the built-in pulldown resistor sets it as input, aka you wont hear anything)
 }
 
 void loop() {
+  randNumber = random(10, 100); //generate random number between 10 and 100
+  digitalWrite(pwmPin, LOW); //set output pin to LOW (0v)
+  delayMicroseconds(randNumber);//wait for randomNumber (10-100 Mircroseconds (0.00001-0.0001 seconds))
+  digitalWrite(pwmPin, HIGH); //set output pin to HIGH (5v)
+  delayMicroseconds(randNumber); //wait for randomNumber (10-100 Mircroseconds (0.00001-0.0001 seconds))
+}
   
   int input3 = digitalRead(A3); // read analog pin 3
   

basics/white-noise-auto-loop/white-noise-auto-loop/white-noise-auto-loop.ino

@@ -0,0 +1,29 @@
+/*
+ * 
+ * White Noise Generator (simple) 
+ * 
+ */
+long randNumber; //variable to store random number
+int pwmPin = 11; //define output pin, Meergranen output pin is 11
+
+void setup() {
+  // if analog input pin 5 is unconnected, random analog
+  // noise will cause the call to randomSeed() to generate
+  // different seed numbers each time the sketch runs.
+  // randomSeed() will then shuffle the random function.
+  randomSeed(analogRead(5));
+  
+  pinMode(pwmPin,OUTPUT); //set pwmPin to output mode (otherwise the built-in pulldown resistor sets it as input, aka you wont hear anything)
+}
+
+void loop() {
+  for(int i=0;i<100;i++){
+  randNumber = random(100, 1000); //generate random number between 10 and 100 ///  random(analogRead(A1)); 
+  digitalWrite(pwmPin, LOW); //set output pin to LOW (0v)
+  delayMicroseconds(randNumber);//wait for randomNumber (10-100 Mircroseconds (0.00001-0.0001 seconds))
+  digitalWrite(pwmPin, HIGH); //set output pin to HIGH (5v)
+  delayMicroseconds(randNumber); //wait for randomNumber (10-100 Mircroseconds (0.00001-0.0001 seconds))
+}
+delay(analogRead(A2));  //fake trigger: delay (1000); it just pauses the code
+
+}

basics/white-noise/white-noise.ino

@@ -22,4 +22,7 @@ void loop() {
   delayMicroseconds(randNumber);//wait for randomNumber (10-100 Mircroseconds (0.00001-0.0001 seconds))
   digitalWrite(pwmPin, HIGH); //set output pin to HIGH (5v)
   delayMicroseconds(randNumber); //wait for randomNumber (10-100 Mircroseconds (0.00001-0.0001 seconds))
+
+  delay (1000)
+
 }